Switch to grayscale when disabled
Switch to grayscale when disabled

- Issue MatterHackers/MCCentral#3062
ColorSwatchSelector remains vibrant when disabled

larsbrubaker/MatterControl,larsbrubaker/MatterControl,larsbrubaker/MatterControl,mmoening/MatterControl,larsbrubaker/MatterControl,jlewin/MatterControl,jlewin/MatterControl,unlimitedbacon/MatterControl,mmoening/MatterControl,jlewin/MatterControl,mmoening/MatterControl,unlimitedbacon/MatterControl,jlewin/MatterControl,unlimitedbacon/MatterControl,unlimitedbacon/MatterControl